Home / 9,781,781.80-13,498,234.44-5,430,867.01

Finding the Fourth Proportional to 9,781,781.80, 13,498,234.44 and 5,430,867.01

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Solution

The fourth proportional to 9,781,781.80, 13,498,234.44 and 5,430,867.01 is: 7,494,249.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,781,781.80 : 13,498,234.44 = 5,430,867.01 : x
  2. Step 2: Convert to fraction form
    9,781,781.80/13,498,234.44 = 5,430,867.01/x
  3. Step 3: Cross multiply
    9,781,781.80x = 13,498,234.44 × 5,430,867.01
  4. Step 4: Simplify right side
    9,781,781.80x = 73,307,116,113,441.81
  5. Step 5: Solve for x
    x = 73,307,116,113,441.81/9,781,781.80
  6. Step 6: Final answer
    x = 7,494,249.78

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.